Mather Group
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Mather Group’s Idexx Laboratories IDXX Stock Holding History

Mather Group’s Portfolio IDXX Stock Details IDXX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$930K Sell
1,781
-42
-2% -$23K 0.01% 392
2026
Q2 		$960K Buy
1,823
+159
+10% +$89.2K 0.01% 385
2026
Q1 		$935K Buy
1,664
+190
+13% +$122K 0.01% 346
2025
Q4 		$997K Buy
1,474
+25
+2% +$17K 0.01% 282
2025
Q3 		$926K Sell
1,449
-13
-0.9% -$7.89K 0.01% 292
2025
Q2 		$784K Buy
1,462
+702
+92% +$336K 0.01% 311
2025
Q1 		$319K Buy
760
+329
+76% +$143K ﹤0.01% 475
2024
Q4 		$178K Sell
431
-186
-30% -$81.6K ﹤0.01% 603
2024
Q3 		$312K Buy
617
+23
+4% +$11.2K ﹤0.01% 456
2024
Q2 		$321K Buy
594
+24
+4% +$12K ﹤0.01% 516
2024
Q1 		$316K Sell
570
-8
-1% -$4.37K 0.01% 430
2023
Q4 		$321K Sell
578
-102
-15% -$47.9K 0.01% 440
2023
Q3 		$297K Buy
680
+208
+44% +$104K 0.01% 442
2023
Q2 		$237K Buy
+472
New +$226K ﹤0.01% 512
2022
Q2 		– Sell
-389
Closed -$213K – 429
2022
Q1 		$213K Buy
+389
New +$205K ﹤0.01% 418

Other funds holding IDXX

Montrusco Bolton Investments
Montrusco Bolton Investments Montreal, Quebec, Canada $5.77B AUM 24.61% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return
Vontobel Holding
Vontobel Holding Zurich, Switzerland $27.7B AUM 21.75% 1-Year Est. Return
Loring Wolcott & Coolidge Fiduciary Advisors
Loring Wolcott & Coolidge Fiduciary Advisors Boston, Massachusetts $10.8B AUM 9.05% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $83.2B AUM 35.34% 1-Year Est. Return
Seilern Investment Management
Seilern Investment Management London, United Kingdom $771M AUM 2.59% 1-Year Est. Return
Bank Pictet & Cie (Europe)
Bank Pictet & Cie (Europe) Frankfurt Am Main, Germany $5.31B AUM 25.55% 1-Year Est. Return
Mogy Joel R Investment Counsel
Mogy Joel R Investment Counsel Beverly Hills, California $1.87B AUM 18.64% 1-Year Est. Return
Manitou Investment Management
Manitou Investment Management Toronto, Ontario, Canada $532M AUM 7.98% 1-Year Est. Return

Mather Group's IDXX Position: Q3 2026 in Review

Mather Group reduced its Idexx Laboratories (IDXX) stake by 2.3% in Q3 2026, selling an estimated $23K and leaving 1,781 shares worth $930K. The position accounts for 0.01% of the portfolio, ranked #392.

Mather Group first reported a position in IDXX in Q1 2022 and has held it in 15 quarters since. The position peaked at $997K in Q4 2025. 300 funds tracked by Wall St. Rank hold IDXX as of Q3 2026.

  • Mather Group held 1,781 shares of Idexx Laboratories worth $930K as of Q3 2026.
  • Mather Group sold 42 Idexx Laboratories shares in Q3 2026, an estimated $23K.
  • Idexx Laboratories made up 0.01% of Mather Group's portfolio in Q3 2026, its #392 holding.
  • Mather Group first reported a position in Idexx Laboratories in Q1 2022 and has held it in 15 quarters since.
  • Mather Group's Idexx Laboratories position peaked at $997K in Q4 2025.
  • 300 funds tracked by Wall St. Rank held Idexx Laboratories as of Q3 2026.

Based on Mather Group's 13F filing for Q3 2026, filed 14 Oct 2026.